In order:
1. Ace Combat 5
2. Ace Combat Zero
3. Hearts of Iron 2
4. Total Annihilation
5. Halo 2
6. Pokemon Red
7. Counter-Strike 1.6
8. Warcraft 3
9. Skyrim
10. Morrowind
11. Halo
12. Ghost Recon 2
13. FF IX
14. Crash Bandicoot
15. GTA SA
16. Star Wars: Battlefront 2
17. Dai Senryaku VII: Modern Military Tactics
18. Eve Online
19. Yoshi's Island
20. Conker’s Bad Fur day
There's my list.